US Patent 9068329 Jet regulator

A jet regulator for the outlet of a sanitary fitting or for a shower is provided that has at least two flow chambers or flow ducts, each of which has an inlet opening and one or more water outlet openings, the control of the flow to each flow chamber or flow duct is carried out via a valve having a resilient valve body which is arranged upstream of the flow chambers or flow ducts and optionally closes or opens the inlet openings thereof using the resilient valve body, wherein a deformation of the resilient valve body and thus a change in the valve position is carried out by a change in the applied water pressure or by mechanical actuation via an actuating element.